Table of Contents
- 1 When a ball is thrown straight up the acceleration is upward?
- 2 What is the motion of an object with constant acceleration?
- 3 When a ball is thrown upward What are its velocity and acceleration at its highest point?
- 4 What force is acting on an object moving at constant velocity?
- 5 Can an object accelerate if its velocity is constant?
- 6 Can a body have zero velocity and still be accelerating?
- 7 How is a ball moving at constant velocity?
- 8 What happens when a ball is thrown vertically upward?
When a ball is thrown straight up the acceleration is upward?
As I throw a ball straight up into the air, the direction of the ball’s motion is initially upward, although it is actually traveling downward at 9.8 m/s squared. At the very top of a ball’s motion, its speed is zero and its acceleration is -9.8 meters per second squared.
How do you know if a ball is moving with constant velocity?
Constant velocity means that the object in motion is moving in a straight line at a constant speed. This line can be represented algebraically as: x=x0+vt x = x 0 + vt , where x0 represents the position of the object at t=0 , and the slope of the line indicates the object’s speed.
What is the motion of an object with constant acceleration?
The rate of change of the velocity of a particle with respect to time is called its acceleration. If the velocity of the particle changes at a constant rate, then this rate is called the constant acceleration.
What happens to the speed of a ball while it moves up with an initial velocity?
Analyzing motion for objects in freefall For example, when a ball is thrown up in the air, the ball’s velocity is initially upward. At the highest point in its trajectory, the ball has zero velocity, and the magnitude of velocity increases again as the ball falls back toward the earth (see figure 1).
When a ball is thrown upward What are its velocity and acceleration at its highest point?
Hi, When a body is thrown upward its velocity keeps on decreasing because of the deceleration due to acceleration due to gravity (g) which pulls the body in downward direction. At the maximum height velocity becomes zero. Therefore, velocity at the top is zero and acceleration is acceleration due to gravity (g).
When a ball reaches maximum height What is the acceleration?
Question: A ball thrown vertically upward reaches a maximum height of 30 meters above the surface of Earth. At its maximum height, the speed of the ball is: Answer: 0 m/s. The instantaneous speed of any projectile at its maximum height is zero….Objects Launched Upward.
| Variable | Value |
|---|---|
| a | -9.8 m/s2 |
| t | 0.40 s |
What force is acting on an object moving at constant velocity?
If an object is moving with a constant velocity, then by definition it has zero acceleration. So there is no net force acting on the object. The total work done on the object is thus 0 (that’s not to say that there isn’t work done by individual forces on the object, but the sum is 0 ).
What is the net force acting on a 1kg ball moving at constant velocity?
The net force acting on 1-kg ball in free fall is 9.8 N. A body in free fall motion experiences free fall acceleration. This acceleration is by…
Can an object accelerate if its velocity is constant?
An object can accelerate while traveling at constant speed but not at constant velocity. This is because acceleration is a measure of the change in velocityover time. Speed is a scalar quantity with magnitude but not direction while velocity is a vector quantity with both magnitude and direction.
What is the simplest type of motion?
The simplest form of motion is the motion in a straight line. The distance and displacement are the quantities used to determine the final position of the object with respect to the initial position.
Can a body have zero velocity and still be accelerating?
Yes, an object can have zero velocity and still be accelerating simultaneously. Then the object will start to move in the backward direction.
What makes a rolling ball slow down and stop?
Friction – as the ball rolls, the ball loses its energy to heat and sound. As the energy is lost, the ball slows down and eventually stops. A rolling ball stops because of friction.” ScienceLine.
How is a ball moving at constant velocity?
The ball is moving at constant velocity. Then is slows down and stops. d. The ball doesn’t move at first. Then it moves backwards and then finally stops. e. The ball moves along a flat area, moves backwards down a hill and then it keeps moving.
Which is the best interpretation of the ball’s motion?
Below is a graph of a ball’s motion. Which of the following gives the best interpretation of the ball’s motion? a. The ball moves along a flat surface. Then it moves forward down a hill, and then finally stops. b. The ball doesn’t move at first. Then it moves forward down a hill and finally stops.
What happens when a ball is thrown vertically upward?
What happens when a ball is thrown vertically upward? When a ball is thrown vertically upward it starts its vertical motion with an initial velocity. As it moves upwards vertically its velocity reduces gradually under the influence of earth’s gravity working towards the opposite direction of the ball’s motion.
How is the acceleration of a ball related to gravity?
The acceleration of the ball would be equal to the acceleration due to gravity caused by gravitational pull or force exerted by the earth on the ball. Its value is approximately 9.8 m/s^2 and its direction would be downwards towards the center of the earth.